Overall Trends
Total, fatal, and serious accidents in the selected range.
Premium research interface
The modern interface for aviation safety intelligence.
Search investigations, review source evidence, monitor watched reports, and trace long-term patterns from one calm, data-first workspace.
63k+
Reports indexed
1940-2026
Coverage
Recent
Last data refresh
Search everything
Fast key and full-text search with live filters, watches, and precise metadata.
Use quotes for exact phrase matches (for example "fuel selector valve").
Featured Report
Safety trends by operating rule
Track fatal and non-fatal accident patterns across Part 91, Part 135, and Part 121 operations.
Loading trend charts…
High-signal investigations
Major cases, deep-report coverage, and investigation media across decades of NTSB history.
Browse the aviation graph
Move quickly by aircraft, airport, operator, and time with indexes built for research, not wandering.
Last Data Update
By Decade
By Month
Aircraft Manufacturer
More manufacturersAirports
More airportsOperators
More operatorsAbout
Aviation safety reports, made easier to study
NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.
The goal is practical safety education: make it faster to find relevant investigations, compare similar events, review factual records, and understand the evidence behind probable-cause and preliminary reports.
The investigative work and source records belong to the National Transportation Safety Board and the published investigation record. This site is not affiliated with or endorsed by the NTSB.
FAQs
NTSB Report
February 28, 1993 · Cessna 150M · N704AF
Stanley, ND
Overview
Report Status
Probable Cause
Event Type
Accident
Date
February 28, 1993
Injury Outcomes
No injuries (1 uninjured)
Location
Stanley, ND
Aircraft
Cessna 150M
Tail Number
N704AF
Operator
Pietsch Flying
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI93LA099
STUDENT PILOT ON A CROSS COUNTRY EXPERIENCED A PARTIAL LOSS OF ENGINE POWER AND COULD NOT MAINTAIN ALTITUDE. THE PILOT MADE A FORCED LANDING IN A SNOW COVERED FIELD, AND NOSED OVER DURING LANDING ROLLOUT. THE ENGINE WAS EXAMINED BY THE FAA, AND NO CONDITIONS WHICH WOULD PRECLUDE NORMAL OPERATION WERE FOUND. THE PILOT TOLD THE FAA INSPECTOR THAT SHE DID NOT USE THE CARBURETOR HEAT UNTIL JUST BEFORE SHE LANDED. THE TEMPERATURE WAS 38 DEGREES F, AND THE DEW POINT WAS 28 DEGREES F. THESE CONDITIONS ARE FAVORABLE FOR CARBURETOR ICING IN CRUISE FLIGHT.
NTSB Probable Cause
THE STUDENT PILOT'S DELAYED USE OF CARBURETOR HEAT. THE SOFT TERRAIN IN THE LANDING AREA WAS A FACTOR.
Full Narrative
STUDENT PILOT ON A CROSS COUNTRY EXPERIENCED A PARTIAL LOSS OF ENGINE POWER AND COULD NOT MAINTAIN ALTITUDE. THE PILOT MADE A FORCED LANDING IN A SNOW COVERED FIELD, AND NOSED OVER DURING LANDING ROLLOUT. THE ENGINE WAS EXAMINED BY THE FAA, AND NO CONDITIONS WHICH WOULD PRECLUDE NORMAL OPERATION WERE FOUND. THE PILOT TOLD THE FAA INSPECTOR THAT SHE DID NOT USE THE CARBURETOR HEAT UNTIL JUST BEFORE SHE LANDED. THE TEMPERATURE WAS 38 DEGREES F, AND THE DEW POINT WAS 28 DEGREES F. THESE CONDITIONS ARE FAVORABLE FOR CARBURETOR ICING IN CRUISE FLIGHT.
Flight
Event TypeAccident
Event Time11:30 MST
Nearest Airport0nm
Runway0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 150M
Tail NumberN704AF
Aircraft CategoryAir
DamageSubstantial
OperatorPietsch Flying
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-200-A · Reciprocating · 100
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 25 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind240° @ 14 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point37 C / 28 C
Altimeter29.00 inHg
Observation Time18:59
Weather SourceWFAC